Seattle Police homicide Detective Rolf Norton talks to reporters about the 1967 cold case of the murder of Susan Galvin, Tuesday, May 7, 2019, at Seattle Police Dept. headquarters in Seattle. Police said Tuesday they have solved the cold case of the murder of Galvin with the help of DNA and a family tree — a method that has revolutionized cold-case investigations across the U.S. (AP Photo/Ted S. Warren)